Finding the Fourth Proportional to 8,280.02, 12,419.72 and 2,733.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,280.02 : 12,419.72 = 2,733.20 : x
2. Step 2: Convert to fraction form
   8,280.02/12,419.72 = 2,733.20/x
3. Step 3: Cross multiply
   8,280.02x = 12,419.72 × 2,733.20
4. Step 4: Simplify right side
   8,280.02x = 33,945,565.04
5. Step 5: Solve for x
   x = 33,945,565.04/8,280.02
6. Step 6: Final answer
   x = 4,099.70